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Please use this identifier to cite or link to this item: http://hdl.handle.net/10481/32963

Title: Trilepton signals: the golden channel for seesaw searches at LHC
Authors: Águila Giménez, Francisco del
Aguilar-Saavedra, Juan Antonio
Blas, Jorge de
Issue Date: 2009
Abstract: The comparison of samples with different number of charged leptons shows that trilepton signals are the most significant ones for seesaw mediators. As previously pointed out, this is indeed the case for scalar Δ (type II) and fermion Σ (type III) triplets at LHC, which can be discovered in this channel for masses up to 500–700 GeV and an integrated luminosity of 30 fb−1; whereas fermion singlets N (type I) are marginally observable if there are no further new physics near the TeV scale. However, if there are new gauge interactions at this scale coupling to right-handed neutrinos, as in left–right models, heavy neutrinos are observable up to masses ∼ 2 TeV for new gauge boson masses up to ∼ 4 TeV, as we discuss in some detail.
Sponsorship: This work has been supported by MEC project FPA2006-05294, Junta de Andalucía projects FQM 101 and FQM 03048, and by the European Community’s Marie-Curie Research Training Network under contract MRTN-CT-2006-035505 “Tools and Precision Calculations for Physics Discoveries at Colliders”. J.A.A.-S. acknowledges support by a MEC Ramón y Cajal contract.
Publisher: Wydawnictwo Uniwersytetu Jagiellonskiego
Description: Presented by F. del Aguila at the XXXIII International Conference of Theoretical Physics, “Matter to the Deepest”, Ustroń, Poland, September 11–16, 2009 and at “NuFact09”, 11th International Workshop on Neutrino Factories, Superbeams and Beta Beams, Chicago, Illinois,USA, July 20–25, 2009.
Keywords: Majorana neutrinos
Neutrino masses
Lepton number
Electroweak interactions
URI: http://hdl.handle.net/10481/32963
ISSN: 0587-4254
Rights : Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License
Citation: Águila, F.; Aguilar-Saavedra, J.A.; Blas, J. Trilepton signals: the golden channel for seesaw searches at LHC. Acta Physica Polonica B, 40(11): 290-2911 (2009). []
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